You are purchasing a Defender 90/110/130 Van or Utility rear step to rear cross member Stainless Steel Fixing Kit
A4-80 is the equivalent of Mild Steel 8.8 high tensile bolts
Kits Consists of;
4no M10 A4-80 x 75mm Hex Head Bolts
8no M10 A4 Flat Washers
4no M10 A4-80 Nylon Nuts